KR-20260063157-A - Automatic cleaning purification static electricity eliminator for ventilation ducts

Abstract

The present invention discloses an automatic cleaning and purification antistatic device for ventilation ducts. The automatic cleaning and purification antistatic device for ventilation ducts according to the present invention relates to an automatic cleaning and purification antistatic device for ventilation ducts that can efficiently remove dust or contaminated air within the ducts by preventing static electricity on contaminated air, including ultrafine dust, within the ventilation ducts installed in large buildings or underground structures, such as subway stations where ventilation is required, coarsening of ultrafine dust, and strong blowing action.

Inventors

• 나기원

Assignees

• 나기원

Dates

Publication Date

20260507

Application Date

20241030

Claims (4)

1. A main body having a tubular case formed with a longitudinal passage, which is installed on one side of the exterior of a ventilation duct and has an intake and exhaust section formed to draw in and resupply internal air of the ventilation duct; A static elimination module installed inside the main body to generate processing air, comprising either or both of a static elimination generator that generates ionized air by generating positive and negative ions with high voltage on the incoming air to induce charge balance and remove static electricity and coarse dust particles, or an OH radical generator that generates OH radicals by ionizing water vapor and oxygen molecules in the air with high-voltage electrodes; A blower module comprising a blower installed on one side of the above-mentioned static discharge module to generate blowing force that applies suction pressure to forcibly discharge processing air into the interior of a ventilation duct, and an air nozzle installed on the main body to be connected to the blower, with its end portion positioned inside the ventilation duct to discharge high-pressure processing air; An automatic cleaning, purification, and static elimination device for a ventilation duct, characterized by comprising: an environment sensing module composed of a gas flow sensor that detects the air velocity within the ventilation duct and a sensor that detects one or more of temperature, humidity, dust concentration, and gas concentration; a driving control unit that selectively supplies power to the static elimination module and the blower module when the air velocity is detected by the gas flow sensor; a real-time contamination control unit that receives contamination information of the ventilation duct, compares it with a preset value, and multi-stage controls the operation of the blower and the static elimination module according to the preset value; and a monitoring control unit that receives operation information of the environment sensing module, the static elimination module, and the blower module, and supplies monitoring information to a terminal connected via wired or wireless connection.
2. In claim 1, the case is formed on one side of the bottom surface and is configured to allow air to flow into one side of the ventilation duct, and comprises a suction part consisting of a plurality of holes having a grid shape; An intake chamber having an upper surface that forms a sloping surface toward one side, providing a space for incoming air to temporarily reside above the intake portion; A filter provided in a form that shields the internal passage of the case by filtering the air introduced into one side of the suction chamber; A door provided to open and close an inspection window formed on one side of the outer surface of the case where the above-mentioned filter is located; A main chamber, which is a space in which an antistatic module that generates and emits ions for air passing through the above filter and a blower that applies suction force to the above suction part are installed; A mixing chamber having a tubular shape connected to the discharge port of the above-mentioned blower, which allows a certain amount of processing air to be retained; A discharge portion formed on the other bottom surface of the above case to allow the processed air passing through the mixing chamber to be discharged to the outside, to which the upper part of the air nozzle is connected; Automatic cleaning, purification, and antistatic device for ventilation ducts characterized by being composed of
3. In claim 1, the air nozzle is, A rotating nozzle section having an upper portion axially rotatable at the above discharge section and a lower portion vertically extended to be located inside a ventilation duct, providing a conduit through which processed air is guided; A rotary drive unit installed on one side of the interior of the above case to generate rotational driving force, and connected to the rotary nozzle tube part via gear meshing or a power transmission belt to transmit rotational force; An angle nozzle section connected to the end of the above-mentioned rotary nozzle section by a hinge coupling structure and configured to rotate up and down; An automatic cleaning, purification, and static elimination device for a ventilation duct, characterized by comprising: an angle driving unit provided at the hinge of the angle nozzle tube portion and generating a driving force to adjust the angle nozzle tube portion up and down.
4. In claim 1, the main body is provided with a cross-flow fan disposed in the widthwise direction on the bottom surface of the case and having an air discharge port disposed toward the ventilation duct, which forms an air wall by vertically discharging air into the interior of the ventilation duct between the intake and exhaust parts of the case; An automatic cleaning, purification, and static elimination device for a ventilation duct, characterized in that the controller further comprises an emergency pollution control unit that receives detection information from the environment detection module, compares it with a preset value, and when the value is exceeded, applies a driving control signal to the cross-flow fan and simultaneously applies a control signal to operate the blower and the static elimination module to the maximum.

Description

Automatic cleaning purification static electricity eliminator for ventilation ducts The present invention relates to an automatic cleaning and purification antistatic device for ventilation ducts, and more specifically, to an automatic cleaning and purification antistatic device for ventilation ducts that can efficiently remove dust or contaminated air within the duct by preventing static electricity on contaminated air, including ultrafine dust, within subway ventilation ducts where ventilation is required, coarsening of ultrafine dust, and strong blowing action. Generally, places such as multi-unit buildings, subway stations, and underground shopping malls require constant supply and exhaust ventilation, so they are equipped with heating, cooling, and ventilation systems. Office spaces or indoor areas equipped with these ventilation systems are often kept sealed to improve heating and cooling efficiency, or they are places where natural ventilation is not smooth. Consequently, as time passes, dust, foreign substances, and odors accumulate in these enclosed indoor spaces, eventually impairing indoor habitability due to poor air quality. Meanwhile, ducts are used as elements that serve as pathways to transport heat, moisture, gas, and dust using air or air as a medium in heating, cooling, or ventilation systems. These ducts are one of the important basic facilities, along with piping, for air conditioning in buildings. Depending on the material, they are classified into galvanized ducts, stainless steel ducts, non-metallic ducts made of PVC or FRP, insulated composite ducts filled with urethane foam or pyrolic foam between thin aluminum plates, flexible ducts formed into corrugated tubes by inserting steel wire spirally between one or two layers of aluminum foil or fiberglass, and fiber ducts made of polyester fabric in the form of long circular or semicircular passages. Depending on the shape, they are classified into square ducts made by bending steel plates into a square shape, and circular ducts used in places where the static pressure inside the duct is high and deformation or vibration must be minimized, or where friction loss in the duct must be minimized in a low airflow range. When such ventilation ducts are used in cooling, heating, or ventilation systems, an exhaust duct for exhausting indoor air to the outside and a supply duct for supplying outdoor air to the inside are connected and installed, and the exhaust duct and the supply duct are respectively connected to an exhaust diffuser and a supply diffuser provided in each room or partitioned space within the room. Meanwhile, when a heating, cooling, or ventilation system is operated for a long time, a large amount of dust enters the exhaust ducts and supply ducts that make up the ventilation ducts and remains in a suspended state, and some of it adheres to the inner walls of the ducts, requiring cleaning; however, it is very difficult to clean and maintain the inside of the ducts thoroughly. In particular, even if outdoor air passes through a filter equipped in the ventilation system and then through the supply duct, the outdoor air contains a large amount of dust, and as fine dust among these cannot be filtered out by a general filter, a large amount of general dust, including fine dust, eventually remains inside the supply duct, some in a suspended state and some attached to the inner wall surface of the duct. In other words, the metal or plastic materials forming the ducts are prone to generating static electricity on their surfaces, which attracts foreign substances, including dust and small particles. Furthermore, metal ducts react with molecules such as oxygen and water to form a thin oxide layer, which is particularly noticeable in dry environments and with dust particles. Such dust and foreign substances accumulate not only on the floor inside the duct but also adhere to the upper and side inner walls; if left unattended for a long period, the attached dust and substances combine with moisture and become fixed, eventually leading to the proliferation of mold and bacteria. This not only continuously deteriorates indoor air quality but also causes problems by reducing exhaust and supply efficiency. Meanwhile, research results show that for about 10 years from 2005 to 2015, fine dust (PM 10) in Korea was influenced by neighboring countries such as China at 48% and caused by domestic factors at 52%, and recently, as the occurrence of ultrafine dust (PM 2.5) has become more frequent, awareness regarding its impact on health is further heightened. Accordingly, on March 20, 2018, the Ministry of Environment announced the “Enforcement Decree of the Framework Act on Environment Policy,” which strengthens the daily average standard for ultrafine dust from 50 ug/㎥ to 35 ug/㎥ and the annual average standard from 35 ug/㎥ to 15 ug/㎥, and in the case of subways, it is establishing a real-time fine dust monitoring system that can track changes in fine